The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 28, 2017
Filed:
Jul. 24, 2013
Hitachi, Ltd., Tokyo, JP;
Tohoku Electric Power Co., Inc., Miyagi, JP;
Tohoku Electric Manufacturing Co., Ltd., Miyagi, JP;
Masahiro Watanabe, Tokyo, JP;
Ryo Egashira, Tokyo, JP;
Kenichiro Yamane, Tokyo, JP;
Katsuhiro Matsuda, Sendai, JP;
Takafumi Futakami, Sendai, JP;
Toshiyuki Seto, Sendai, JP;
Jun Murakoshi, Tagajo, JP;
Hitachi, Ltd., Tokyo, JP;
Tohoku Electric Power Co., Ltd., Miyagi, JP;
Tohoku Electric Manufacturing Co., Ltd., Miyagi, JP;
Abstract
A voltage adjustment device, a voltage adjusting method and a power control system for a distribution system are provided, in which the voltage adjustment device and a static var compensator are appropriately operated in a coordinated manner and the sustention of voltage and the enhancement of the operation efficiency are attained. A voltage adjustment device for a distribution system is installed in the distribution system including a static var compensator on an end side and controls a secondary voltage to be within a predetermined limit value by adjusting a tap position. The voltage adjustment device includes a first unit configured to estimate the secondary voltage; a second unit configured to obtain a corrected voltage by correcting the estimated secondary voltage by using a correction amount obtained from an output of the static var compensator; and a third unit configured to compare the corrected voltage with the predetermined limit value and operate the tap position when the corrected voltage deviates from the predetermined limit value.